OpenAI holds a 97.1% market-implied probability of finishing third in OpenRouter lab share for the week of September 28 because recent weekly token-volume data show Chinese labs and a new anonymous entrant dominating the top ranks. DeepSeek models led aggregated share near 23-24%, followed closely by Stealth’s Space Bunny Alpha at roughly 21-22%, with OpenAI models (primarily GPT-5.6 and GPT-6 Luna variants) placing third around 12-13%. This positioning stems from sustained advantages in aggressive pricing, open weights, and strong coding/agent performance that have driven Chinese models above 50% of platform tokens for months. A late surge in a single high-volume OpenAI release or sharp drop in Stealth usage could shift the ordering, though current trends and the week’s proximity to resolution make such reversals unlikely.